Implement From for RedisValue

Author: gavrie

examples/hello.rs

@@ -9,7 +9,7 @@ use std::ffi::CString;
 
 //use failure::Error;
 
-use redismodule::{Context, Command, RedisResult, RedisValue, RedisError};
+use redismodule::{Context, Command, RedisResult, RedisError};
 
 fn hello_mul(_: &Context, args: Vec<String>) -> RedisResult {
     if args.len() < 2 {
@@ -24,14 +24,10 @@ fn hello_mul(_: &Context, args: Vec<String>) -> RedisResult {
 
     let product = nums.iter().product();
 
-    let response = nums
-        .into_iter()
-        .chain(iter::once(product));
+    let mut response = Vec::from(nums);
+    response.push(product);
 
-    return Ok(RedisValue::Array(
-        response
-            .map(RedisValue::Integer)
-            .collect()));
+    return Ok(response.into());
 }
 
 fn parse_integer(arg: String) -> Result<i64, RedisError> {

src/redismodule.rs

@@ -20,6 +20,17 @@ pub enum RedisValue {
     Array(Vec<RedisValue>),
 }
 
+impl From<Vec<i64>> for RedisValue {
+    fn from(nums: Vec<i64>) -> Self {
+        RedisValue::Array(nums
+            .into_iter()
+            .map(RedisValue::Integer)
+            .collect())
+    }
+}
+
+///////////////////////////////////////////////////
+
 #[derive(Debug)]
 pub struct RedisString {
     ctx: *mut raw::RedisModuleCtx,